Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 865e323adb0dfa4ed604d182db22e5e6c7ec7a2e5c46fda17c9cbf84720b332a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^